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Purpose: To clarify the femoral tunnel location for a virtual anterior cruciate ligament (ACL) graft to simulate the native ACL.
Methods: Three-dimensional (3D) computed tomography (CT) and magnetic resonance imaging (MRI) were obtained in 14 normal knees in full extension. Two types of virtual triple bundle ACL grafts (VACLG) were created.
Spin and valley dependent transport and tunneling magnetoresistance in irradiated ferromagnetic WSedouble barrier junctions.
Sci Rep
January 2025
College of Science, Xuchang University, Xuchang, 461000, China.
Spin and valley polarizations (P and P) and tunneling magnetoresistance (TMR) are demonstrated in the ferromagnetic/barrier/normal/barrier/ferromagnetic WSe junction, with the gate voltage and off-resonant circularly polarized light (CPL) applied to the two barrier regions. The minimum incident energy of non-zero spin- and valley-resolved conductance has been derived, which is consistent with numerical calculations and depends on the electric potential U, CPL intensity ΔΩ, exchange field h, and magnetization configuration: parallel (P) or antiparallel (AP). For the P (AP) configuration, the energy region with P = -1 or P = 1 is wider (narrower) and increases with ΔΩ.
View Article and Find Full Text PDF'Findings of Magnetic Resonance Imaging in Knee with Post-Reconstruction Infection of the ACL: A Descriptive and Reliability Study' as per instructions.
J ISAKOS
January 2025
Hospital for Special Surgery, 535 E 70(th) St, New York, NY 10021. Electronic address:
Objectives: Septic arthritis after anterior cruciate ligament (ACL) reconstruction is a rare but potentially devastating complication. The imaging findings associated with such infections are not well-described or quantified. The purpose of this study was to describe and quantify the frequency of the characteristic MRI findings of infection following ACL reconstruction.
View Article and Find Full Text PDFSpin-Polarized Scanning Tunneling Microscopy Measurements of an Anderson Impurity.
Phys Rev Lett
December 2024
II. Physikalisches Institut, Universität zu Köln, Zülpicher Straße 77, 50937 Cologne, Germany.
We report spin-polarized scanning tunneling microscopy measurements of an Anderson impurity system in MoS_{2} mirror-twin boundaries, where both the quantum-confined impurity state and the Kondo resonance resulting from the interaction with the substrate are accessible. Using a spin-polarized tip, we observe magnetic-field-induced changes in the peak heights of the Anderson impurity states as well as in the magnetic-field-split Kondo resonance. Quantitative comparison with numerical renormalization group calculations provides evidence of the notable spin polarization of the spin-resolved impurity spectral function under the influence of a magnetic field.
View Article and Find Full Text PDFFeshbach hypothesis of high-Tc superconductivity in cuprates.
Nat Commun
January 2025
Department of Physics and Arnold Sommerfeld Center for Theoretical Physics (ASC), Ludwig-Maximilians-Universität München, München, Germany.
Article Synopsis
- The study explores strong pairing mechanisms in many-body physics, particularly through a Feshbach perspective, focusing on interactions in Fermi-Hubbard models related to doped Mott insulators.
- It theorizes the presence of a low-energy excited state of two holes that facilitates near-resonant interactions, which aligns with observed behaviors in cuprate materials.
- The authors propose experimental methods like cARPES and pair-tunneling measurements to test their theories, suggesting a link between emergent Feshbach resonances and superconductivity in antiferromagnetic Mott insulators.
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